/******************************************************************************
 * Copyright (C) 2015  671643387@qq.com
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *****************************************************************************/

#ifndef UGAME_DATA_REL_SQLCONNECTIONFACTORY_H_
#define UGAME_DATA_REL_SQLCONNECTIONFACTORY_H_

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif

#include <deque>
#include <string>
#include <UGame/Macros.h>
#include <UGame/Singleton.h>
#include <UGame/System/Mutex.h>
#include <UGame/Policies/ThreadingModel.h>

namespace UGame {
namespace Data {
namespace Rel {
    class Session;
    class SqlConnection;
    class SqlConnectionFactoryImpl;

	class SqlConnectionFactory : public UGame::Singleton<SqlConnectionFactory, UGame::Policies::ClassLevelLockable<SqlConnectionFactory, UGame::System::Mutex> >
    {
    public:
        SqlConnectionFactory(void);
        ~SqlConnectionFactory(void);

        static void RegistryFactory(const std::string& _Key, SqlConnectionFactoryImpl* _Factory);
        static void UnregistryFactory(const std::string& _Key);

        static SqlConnection* Create(Session* _Sess, const std::string& _Key, const std::string& _Host,
            const std::string& _Port, const std::string& _User,
            const std::string _Password, const std::string& _Db);

    private:
        void _RegistryFactory(const std::string& _Key, SqlConnectionFactoryImpl* _Factory);
        void _UnregistryFactory(const std::string& _Key);
        SqlConnectionFactoryImpl* _FindFactory(const std::string& _Key);
        void _Uninitialize(void);

        struct _FactoryEntry
        {
            std::string Key;
            SqlConnectionFactoryImpl* Factory;
        };
        std::deque<struct _FactoryEntry>   _factories;
        System::Mutex _factoriesLock;
        DISALLOW_COPY_AND_ASSIGN(SqlConnectionFactory);
    };

}}}

#endif // UGAME_DATA_REL_SQLCONNECTIONFACTORY_H_
